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Taxonomic value of leaf epidermal markers in discriminating medicinal tree species of Apocynaceae Juss in Nigeria









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    Prioritization of indigenous fruit trees/shrubs for domestication in northern Guinea savanna, Taraba State, Nigeria
    XV World Forestry Congress, 2-6 May 2022
    2022
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    Indigenous fruit trees/shrubs are essential biological resources in many agroecological systems globally, including Nigeria. They are essential for household nutrition, food security, poverty alleviation, and ecosystems sustenance. Despite their numerous potentials in rural households, food security, income, and ecological attributes, many remain in the wild state with little domestication efforts, limiting their economic potentials. The study was carried out to prioritized indigenous fruit trees/shrubs in the region. Semi-structured questionnaires and focus group discussions were used for the data collection on the existing trees/shrubs species, while prioritization was based on certain variables (farmers' preference and roles in economy). Findings indicated that 27 edible fruit-bearing species were identified, 67% were trees, and 33% were shrubs. The plant species belonged to 19 taxonomic families with Fabaceae being dominant. Individually, farmers' priority species based on food value, income potentials, medicinal values, and food security benefits were; Parkia biglobosa, Vitellaria paradoxa, Prosopis africana, Vitex doniana, and Adansonia digitata. The need to step up provenance evaluations and domestication efforts for future agroforestry and plantations establishment implied in the study. Keywords: Domestication, Cultivars, Germplasm, Prioritized, Savanna, Agroforestry ID: 3478035
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    The genomic selection of Korean red pine (Pinus densiflora)
    XV World Forestry Congress, 2-6 May 2022
    2022
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    The breeding of forest tree requires a much longer and more expensive effort than the breeding of other plants. Especially, one breeding cycle for Korean red pine takes 40-50 years in conventional breeding. To reduce the period of breeding cycle of Korean red pine, genomic selection (GS), where analysis is based on the all effects of quantitative trait loci (QTLs) using molecular markers of high-density, was attempted using individual data of four half-sib populations. The genotypic and phenotypic data of an individual were obtained from 50K SNP chip and 3D LiDAR scanner, respectively. For genomic selection related to four growth traits, the predictive ability of seven genomic prediction models was evaluated within- and between-regional approach. At first, the number of markers (2K, 6K, 10K and 16K) was tested and it was found that predictive abilities of genomic prediction models showed similar patterns with 6K and more markers. In addition, the predictive abilities of genomic prediction with 6K markers and three-fold cross-validation within region were estimated as 0.07~0.38 in height, 0.06~0.29 in DBH, 0.02~0.27 in straightness, and 0.06~0.25 in volume. Most of the genomic prediction results were higher than the results of A-BLUP based on the pedigree. Subsequently, when genomic prediction between regions was performed by using five regions as training population and a region as validation population, the predictive abilities were lower than that of within-region predictions. These results indicated that it is possible to improve Korean red pine for growth trait through genomic selection within region, but more experiment will be needed for between-region prediction. This study was the first trial of genomic selection for Korean forest tree, and suggested the possibility of its application to Korean red pine breeding. Keywords: Research ID: 3619084
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    Indian butter tree: An excellent source of nutrition and livelihood generation
    XV World Forestry Congress, 2-6 May 2022
    2022
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    Cheura (Diploknema butyraceae) belonging to Sapotaceae family, is an important oil seed of tree-origin, distributed from India (Garhwal, Kumaun eastward to Sikkim) to Nepal and Bhutan (sub Himalayan tracts and outer Himalayan ranges). In India, it occurs abundantly in Uttarakhand region. Fatty Oil in kernels known as phulwa or phulwara ghee and is used for cooking and frying of vegetables and food. It is also used for preparing medicines, ointment, candles, cream and other user friendly products. The cake produced after processing of Cheura is used as manure and has pesticidal properties. Keeping the above facts in view, the present study was undertaken to evaluate the nutritional aspects and preliminary phytochemical analysis of cheura seeds. A high performance thin layer chromatography method for the separation of active constituents has been developed which would be helpful in identification and isolation of the chemical markers present in cheura seeds. Qualitative analysis of the different extracts of the plants has been done by the standard methods and with the help of this analysis nature of the compounds which have been present in the plant is being identified. This study will further help in developing the value added products from cheura seeds. Key words: Cheura (Diploknema butyraceae), Sapotaceae, tree borne oil seed, nutritional aspects, analysis, value addition. Sustainable forest management, Economic Development, Biodiversity conservation, Adaptive and integrated management, Research. ID: 3485541

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